ISBN-13: 9781511801300 / Angielski / Miękka / 2015 / 82 str.
This book contains graphs designed to show the trajectories of plastic baseballs ejected from a pitching machine, including hardball, softball, pop fly, and grounder patterns. Side views show the natural curvature of the path up and down on a day without wind. Forward views show the drift of the ball to the left or right during a windy day. These data can be used for lesson plans by teachers and parents.